ANA-570: export dashboard mvp
ANA-570: use connection.poll, add exceptions handling
ANA-570: project uses connection poll method
ANA-570: review fixes
ANA-570: more lisibility
better lisibility
ANA-570: better abstraction of date_filters
ANA-570: always launch all steps to download dashboard
ANA-570: changed date_filters into common_filters (list of filters)
ANA-570: better docstring
ANA-570: review fix - catch malformed common_filters
ANA-570: better docstring
Merge pull request #25 from Work4Labs/tmichelet/ANA-570/export-dashboard

Tmichelet/ana 570/export dashboard